Editing a PDF form

I got sent a new version of my companies expense claim form, the last was in a word format, the new one is in a PDF document.

On the top are about 6 sections such as name, department, etc etc, when I print them off I have to fill these in manually with a pen, is there any way to edit the form so that when its printed it has the fields prefilled with the details.

Depends on the document itself and on your PDF application. The PDF documents can contain fillable forms and JavaScript, among other things, but not all readers can make use of them (or the features might be disabled in the settings).

to edit PDFs, you need to have the FULL version of Adobe, which is a professional program. Readers only allow you to look at the text or fill in forms.

There are many programs that allow creation of PDFs from other sources. OpenOffice is one of them. There also also converters DOC to PDF for example, but to edit PDF in PDF format, you need Adobe professional itself.

Actually, if they expected you to be able to fill it out on the computer they created it wrong. There are documents I have to fill out occationally at work and they allow me to enter in data in fields, I just can't save, but I can print.

You can do that with a modern version of Acrobat Reader, provided the creater of the PDF correctly created it.